The power of sensory illusion
From one of my favorite websites of all times, one I has visited almost daily for something like 10 years, the Astronomy Picture of the Day, this the one for 17 July 2007:
Are square A and B the same color? They are. Are too. To verify this, click on the above image to see them connected. The above illusion, called the same color illusion, illustrates that purely human observations in science may be ambiguous or inaccurate. Even such a seemingly direct perception as relative color.
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